Can anyone please advise me on what is my car problem that is when I turn at speed > 30 mph & @ an angle > 70 degrees it create a noise which only goes away when i switch of the car. I feel it is a power pump issue. Please advise.

 

Any dash warning lights on?
Maybe you should check out your power steering fluid level. May be a bit low or a possible system leak.
Pay to check it out ASAP

 

Power steering fluid is fine. I will get this checked soon.